SMR83 2rs
SMR Series Stainless Steel Miniature Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Ball & Washer Dimensions
Performance
Materials
Environment & Compliance
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SMR83 2rs Bearing Product Overview & Core Advantages
The SMR83 2RS is a metric miniature ball bearing designed for compact, high-precision applications. As a single row, sealed bearing, it is engineered to handle primarily radial loads effectively. Its construction from stainless steel throughout the rings, balls, and cage ensures excellent corrosion resistance, making it suitable for demanding environments. The 2RS designation indicates double rubber seals, providing superior protection against contamination and retaining lubrication, which is essential for maintaining performance and longevity. This bearing is ideal for applications requiring a reliable, compact, and corrosion-resistant precision bearing solution.
SMR83 2rs Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning | Significance & Advantage |
|---|---|---|
| SMR83 | Standard prefix and size code for a miniature bearing series. | Denotes a compact bearing with a 3mm bore, 8mm OD, and 3mm width. |
| 2RS | Double rubber contact seals on both sides. | Provides excellent exclusion of contaminants and retention of lubricant, enhancing bearing life and enabling maintenance-free operation in many applications. |
SMR83 2rs Bearing Structural Features & Performance Benefits
- Compact & Lightweight Design: With dimensions of 3x8x3 mm and a weight of only 0.51 g, this bearing is ideal for space-constrained and weight-sensitive applications.
- Corrosion Resistance: The use of stainless steel for all critical components (rings, balls, cage) ensures reliable performance in humid or corrosive environments.
- Sealed for Protection & Longevity: The double rubber seals (2RS) effectively shield the internal components from dust, moisture, and other contaminants while retaining the necessary lubrication. This contributes to a consistent radial internal clearance (MC3 / 0.002mm to 0.013mm) over time.
- Precision Performance: Manufactured to ABEC1 tolerance class, this bearing offers reliable running accuracy for a wide range of general precision applications.
- Load and Speed Capacity: With a radial dynamic load rating of 68 lbf and a limiting speed of 54,000 rpm, it is well-suited for small electric motors and high-speed spindles.
SMR83 2rs Bearing Typical Application Areas
- Small Precision Electric Motors (e.g., in drones, RC models)
- Medical and Dental Handpieces
- Office Automation Equipment (Printers, Scanners)
- Instrumentation and Measurement Devices
- Small Fans and Blowers
- Textile Machinery Guides
- Food Processing Equipment (due to stainless steel construction)
